I think I've figured it out. It took me a couple of practices and talking to a couple of people, but it is clear to me why the Dolphins applied the stiff-arm to fullback Vonta Leach late last week.

It's just that the Dolphins are going to use a one-back look with four pass-catchers (three receivers and a tight end) or an I-formation look with the tight end as the lead blocker look going forward. And none of that leaves a lot of room for a fullback on the roster.

It makes sense, really.

When you consider the Dolphins have three starting-caliber and high priced receivers in Mike Wallace, Brian Hartline and Brandon Gibson on the team, it makes sense to get them on the field as much as possible. When you consider Dustin Keller is an experienced and solid tight end and the Dolphins are heavily invested in the position with Charles Clay, Dion Sims, Kyle Miller and Michael Egnew, it makes sense to have an extra roster spot not occupied by a fullback and instead used on an extra tight end.

Voila, mystery solved.

I remind you the Dolphins still have two fullbacks on the roster: Jorvorskie Lane and Evan Rodriguez. But neither has gotten even one snap with the first or second-team offense in two days of camp that I've noticed. Both are in a deserate fight to merely make the team. I don't like their chances.

Vonta Leach would be a huge upgrade over Lane or Rodriguez. Miami has to have a decent FB on the roster. Leach would earn his money on goal line and redzone downs. Miami needs to score TD's not settle for FG's.

I remind you the Dolphins still have two fullbacks on the roster: Jorvorskie Lane and Evan Rodriguez. But neither has gotten even one snap with the first or second-team offense in two days of camp that I've noticed. Both are in a deserate fight to merely make the team. I don't like their chances.

Really? If Lane doesn't make the team, who is our other option? I've never even heard of this Evan Rodriguez guy, so it's certainly not him. I never thought of Lane as "desperately fighting to merely make the team". I thought he was one of the guys we'd see next season. He didn't ball out last season, but he wasn't necessarily mediocre either.

Wouldn't surprise me much if Clay took up the FB spot on the depth chart. Lane would be cut and they keep all the tight ends with the possibility of putting Kyle Miller? on the practice squad if eligible.